Detroit (DTW) to Dulles (IAD)
Flight time
≈ 1h 34m
Bearing
124° SE
Detroit (DTW) to Dulles (IAD) is 383 miles (616 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies DTW–IAD
US DOT T-100 · filed dataIn April 2026, SkyWest Airlines operated the most departures, one of 7 carriers flying nonstop DTW–IAD; the Bombardier CRJ-900 was the most common aircraft at 43% of departures; flights ran 72% full.
Departures
339
April 2026
Seats
28,199
both directions
Passengers
20,171
both directions
Load factor
71.5%
passengers ÷ seats
Who flies DTW–IAD?
SkyWest Airlines operated the most nonstop DTW–IAD departures in April 2026 (148), one of 7 carriers on the route.
- OO
SkyWest Airlines
148 departures · 10,718 seats
Share of departures43.7%70.7%
Load
- YV
Mesa Airlines
110 departures · 7,994 seats
Share of departures32.4%73.7%
Load
- UA
United Airlines
37 departures · 5,140 seats
Share of departures10.9%63.0%
Load
- DL
Delta Air Lines
33 departures · 3,719 seats
Share of departures9.7%78.7%
Load
- G7
GoJet Airlines
8 departures · 400 seats
Share of departures2.4%84.5%
Load
- YX
Republic Airways
2 departures · 152 seats
Share of departures0.6%87.5%
Load
- OH
PSA Airlines
1 departures · 76 seats
Share of departures0.3%81.6%
Load
What plane flies DTW–IAD?
In April 2026, the Bombardier CRJ-900 flew 43% of DTW–IAD departures — more than any other aircraft type.
- Bombardier CRJ-900
145 departures · 71.1% load
42.8% - Embraer E175
112 departures · 73.9% load
33.0% - Boeing 717-200
32 departures · 81.3% load
9.4% - Boeing 737-700
26 departures · 68.5% load
7.7% - Bombardier CRJ-550
8 departures · 84.5% load
2.4% - Boeing 737-900ER
4 departures · 47.9% load
1.2% - Bombardier CRJ-700
4 departures · 57.7% load
1.2% - Boeing 737 MAX 9
2 departures · 49.2% load
0.6% - Boeing 737-800
2 departures · 39.5% load
0.6% - Boeing 737 MAX 8
2 departures · 68.4% load
0.6% - Airbus A319
1 departures · 96.0% load
0.3% - Boeing 757-200
1 departures · 32.7% load
0.3%
How has DTW–IAD traffic changed?
Nonstop DTW–IAD departures fell from 421 in May 2025 to 339 in April 2026.
Monthly nonstop DTW–IAD traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
421 departures · 26,390 passengers
83.5%
Load
June 2025
408 departures · 25,259 passengers
84.6%
Load
July 2025
401 departures · 24,343 passengers
81.6%
Load
August 2025
416 departures · 24,742 passengers
80.8%
Load
September 2025
387 departures · 22,069 passengers
77.0%
Load
October 2025
404 departures · 23,278 passengers
78.4%
Load
November 2025
350 departures · 19,132 passengers
73.2%
Load
December 2025
366 departures · 19,761 passengers
74.6%
Load
January 2026
303 departures · 14,379 passengers
68.1%
Load
February 2026
287 departures · 13,922 passengers
68.3%
Load
March 2026
348 departures · 19,227 passengers
76.7%
Load
April 2026
339 departures · 20,171 passengers
71.5%
Load
By direction
The DOT files each direction separately — they rarely match.
IAD → DTW
75.0% full
170 departures · 10,600 passengers
DTW → IAD
68.1% full
169 departures · 9,571 passengers
Nonstop DTW–IAD traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Detroit (DTW) from Dulles (IAD)?
DTW to IAD is 383 miles (616 km / 333 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from DTW to IAD?
A nonstop covers the 383-mile great-circle distance in roughly 1h 34m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies DTW–IAD?
In April 2026, the Bombardier CRJ-900 flew the largest share of departures (42.8%), followed by the Embraer E175 (33.0%).
What mileage do I earn flying DTW–IAD?
Distance-based programs credit off the 383-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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